Preparation of photosensitive silver halide materials with organic ripening agents

Photosensitive silver halide emulsions are prepared by providing an emulsion containing an anionic acid-substituted organic ripening agent and a salt of an element in Group IIA of the Periodic Table and then growing silver halide grains in the emulsion. This combination of an acid-substituted organi...

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Bibliographische Detailangaben
Hauptverfasser:	HERZ ARTHUR HERMAN C O EASTMAN, KLAUS ROGER LEE C O EASTMAN KO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	Photosensitive silver halide emulsions are prepared by providing an emulsion containing an anionic acid-substituted organic ripening agent and a salt of an element in Group IIA of the Periodic Table and then growing silver halide grains in the emulsion. This combination of an acid-substituted organic ripener and a salt of a Group IIA element produces a superadditive effect on the growth of silver halide crystals.